Google Releases Gemini 4 Carbon for Deep Reasoning, Cybersecurity, and Multi-Agent Workflows

Google announced the availability of Gemini 4 Carbon on the 10th. According to the company, compared with Gemini 4 Argon designed for general knowledge work and software engineering, Carbon can allocate more tokens for deep reasoning, prolonged execution, and iterative verification. For agent collaboration, Google previewed the /swarm capability on Antigravity, allowing developers to orchestrate multiple agents via single prompts, with Carbon handling architecture, coordination, and audits. In document processing, the model analyzes complex files containing charts and images to produce formatted spreadsheets, presentations, and reports. Cybersecurity is a core focus. Google stated Carbon for cyber assists in finding, validating, and patching vulnerabilities, achieving a 100% vulnerability recall rate in internal testing. Google subsidiary Wiz used it to uncover critical flaws at SaaS providers in under two hours. Dedicated cybersecurity access requires application via the Fairwind Program. The model is also applied to verify cryptographic protocols and biomedical research. Gemini 4 Carbon is now available to paid developers and enterprises at $2 per million input tokens and $10 per million output tokens, with planned rollouts to Google AI Ultra subscribers.

Key takeaways

• Google released Gemini 4 Carbon, engineered for sustained reasoning, multi-step verification, and demanding technical workloads.
• The Antigravity platform previewed /swarm, using Carbon to oversee architecture design, coordination, and audits across multiple agents.
• A dedicated Carbon for cyber variant targets vulnerability discovery and patch creation, accessible via the Fairwind Program.
• API access is open to paying developers at $2 per million input and $10 per million output tokens, expanding to Ultra subscribers.